Oocyte/zygote/embryo maturation arrest-11 (OZEMA11) is characterized by reduced or absent fertility and poor embryonic outcomes with assisted reproductive technology. Oocytes with multiple sperm heads and multiple pronuclei have been observed after overnight in vitro fertilization (Maddirevula et al., 2022).
For a general phenotypic description and a discussion of genetic heterogeneity of OZEMA, see 615774. [from
OMIM]